28153080 has 48 divisors (see below), whose sum is σ = 91498680. Its totient is φ = 7507392.

The previous prime is 28153067. The next prime is 28153121. The reversal of 28153080 is 8035182.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38742 + ... + 39461.

Almost surely, 2^28153080 is an apocalyptic number.

28153080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28153080 is an abundant number, since it is smaller than the sum of its proper divisors (63345600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28153080 is a wasteful number, since it uses less digits than its factorization.

28153080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78220 (or 78213 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

The square root of 28153080 is about 5305.9476062245. The cubic root of 28153080 is about 304.2112739566.

It can be divided in two parts, 281 and 53080, that added together give a square (53361 = 231²).

The spelling of 28153080 in words is "twenty-eight million, one hundred fifty-three thousand, eighty".